Multiple Choice
What is the first step in energy flow through an ecosystem?
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52. Ecosystems
Energy Flow Through Ecosystems
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How do decomposers convert energy for an ecosystem?
A
By breaking down dead organic matter and releasing nutrients back into the soil
B
By capturing sunlight and converting it into chemical energy
C
By storing energy in the form of glucose through photosynthesis
D
By consuming primary producers and transferring energy to higher trophic levels
Verified step by step guidance1
Understand the role of decomposers in an ecosystem: Decomposers, such as bacteria and fungi, break down dead organic matter, including plants and animals, into simpler substances.
Recognize the process of decomposition: During decomposition, decomposers release enzymes that break down complex organic materials into simpler molecules, such as carbon dioxide, water, and nutrients.
Identify the energy conversion: Decomposers convert the chemical energy stored in dead organic matter into energy that they use for their own metabolic processes, releasing nutrients back into the ecosystem.
Consider the nutrient cycle: The nutrients released by decomposers are essential for plant growth, as they enrich the soil, making them available for primary producers like plants.
Differentiate from other processes: Unlike photosynthesis, which captures sunlight to produce glucose, or consumption by primary consumers, decomposers do not capture sunlight or consume living plants but instead recycle energy and nutrients from dead matter.
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